I thank the City of Boulder Open Space for use of the study site. I give special thanks to Professor Tim Seastedt for help in the field, in the lab, and with the statistical analysis. Thanks also to Professor Jane Bock and Dr. Barry Bennett for their assistance in plant identification and to Sally Susnowitz for advice on writing and revision. I am especially grateful to the EPOB Club at University of Colorado at Boulder for their funding assistance during this project.
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